calculate area of these slotted holes?

area of slot
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Pattern Layout and Open Area Calculation ; - Width of Slot - Length of Slot - Side Center - End Center - Open Area

SLOT HOLES PARALLEL LINE Open area %: P= SLOT HOLES STAGGERED PITCH Open area % : P= 2 *[ * C + (0,785

area slot ทางเข้า after the selected time slot Visitors are advised to arrive 30 minutes In the 2nd century , on the western edge of the area, Herodes Atticus

area slot 188 A = Percent of Open Area ; W = Width of Slot Opening ; L = Length of Slot Opening ; C = Length of Cluster Opening ; D = Warp Wire Diameter